.head1{width: 1000px;height: 30px;margin: auto;text-align: center;line-height: 30px;background: #F0F8FF;border-bottom: solid  blueviolet 2px;margin-left: 200px;margin-right: 200px;}
div a{width:100px;height: 30px;float: left;color: #323232;margin-top: 2px;}
div a:hover{width: 100px;height: 30px;float: left;color: #A52A2A;}